Breast-pump.



No; 798,893. PATENTED SEPT. 5, 1905.

U. D. EZELL.

BREAST PUMP.

APPLICATION FILED NOV. 21, 1904.

new a can" no. wow-uwocmwt i wlsnmcfou u c UNITED STATES UBERTO DESAIXEZELL, OF KIHBALL, TEXAS.

BREAST-PUIVI P.

Specification of Letters Patent.

Patented Sept. 5, 1905.

Application filed November 21, 1904. Serial No. 233,721.

To (all u'hmn/ it may concern.-

Be it known that I, Uenn'ro DESAIX EznLL, a citizen of the UnitedStates, residing at Kimball, in the county of Bosque and State of Texas,have invented new and useful Improvements in Breast-Pumps, of which thefollowing is a specification.

This invention relates to improvements in breast-punms, the object ofthe same being to provide a device of this character by which thesuckling of an infant may be closely simulated and the extracting actionrendered more eflicient and natural and less liable to injure thesecreting-glands and which may be conveniently operated by the patientor nurse or other attendant.

\Vith these and other objects in view the invention resides in thecombination and arrangementof parts, as hereinafterdescribed andclaimed, reference being had to the accompanying drawings, in which*Figure 1 is a perspective view of a breastpump embodying my invention.Fig. 2 is a vertical longitudinal section of the same,showing the normaland compressed positions of the nipple-manipulator in full and brokenlines; and Fig. 3 is a detail perspective view of the nipple-manipulatordetached.

Referring now more particularly to the drawings, the numeral 1represents a cupshaped applicator adapted to be applied to the gland andto snugly and easily lit the same. This applicator is preferably formedof rubher and is provided upon its convex side with anoutwardly-projecting neck orsleeve 2, pre ferably of pyramidal form, andcomposed of rubher or other suitable elastic material. This neck orsleeve receives the outer end or throat 3 of an extracting-tube 4, whichis connected at its outer end to an extractor 5. The throat 3 conformsin contour to the shape of the neck or sleeve 2that is, the said throatis substantially of pyramidal formso that its upper and lower sides willconform to the flare of the corresponding portions of the neck or sleeve2 and extend parallel therewith in order to enable thenipple-manipulating device to be inserted for operation, as hereinafterdescribed.

The extractor5 comprisesa pump-cylinder 6, having a tapered inner end 7,over which is litted the inner enlarged or flared end 8 of theextracting-tube a, thus detachably connecting the pump to said tube. inthe cylinder 6 is a piston 9, which is provided with suitable packing totightly lit the interior of said cylinder, and connected to said pistonis a stem 10, projecting to the exterior through a plug or cap 11,closing the outer end of the cylinder, and provided at its outer endwith a knob or linger-piece 12, whereby it may be operated toreciprocate the piston in the cylinder for extracting purposes. The stem10 is screw-threzuled substantially throughout its entire length, and onthe outer end of the stem is a stop-disk or head 13, having aninternally-screw-threaded bore to it the threads on the stem and adaptsaid disk to be adjusted thereon to limit the inward movement of thepiston. By the provision of this stop-disk the piston when drawn out tocreate a vacuum in the cylinder and extracting-tube to effect theextraction of milk from the gland may be locked or held immovable at theouter end of the cylinder by adjusting the stop-disk on thescrew-threads of the stem until said disk abuts against the cap or plug11 \Vhen the device is applied for use, it will be understood that theoutward movement of the piston effects the extraction of the secretion,which maybe removed from the pump-cylinder by detaching the pump fromthe extracting-tube In order to render the extracting action moreefficient and natural and less liable to injure the gland, anipplc-manipulating device is provided, which may be operatedsimultaneously with the extractor to simulate as closely as possible thesuckling action of the lips of the infant on the nipple. This devicecomprises a pair of lips or lingers 1a, which are disposed between theupper and lower flaring sides of theneck or sleeve 2 and thecorresponding adjacent sides of the throat 3 and are formed withoutwardly bent or divergent ends 15, which closely conform to thecontour of the inner end of the neck orsleeve 2 at its junction with thecup 1 and are adapted to be moved toward and from one another tocompress and release the nipple, and thereby simulate the natural actionof the lips of the child. The lips or lingers extend rearwardly beyondthe throat 3 and are connected to operating-levers 17, which extend atan outward angle or in divergent relation beyond the neck 2 on oppositesides of the extracting-tube & and terminate at their outer ends inlinger-pieces 18, by which they may be compressed to the dotted-lineposition shown in Fig. 2 to expand the lips or lingers. The

lips or fingers are normally retained in closed pos1t1on--that is, inthe ad acent full-line position shown in Fig. 2 in wlnch they are IIOadapted to effect the compression of the nipple by the elasticity orresiliency of the upper and lower flaring sides of the pyramidal neck orsleeve 2, which also operate to maintain the levers in the divergentrelation shown in said figure. The levers are provided at their forwardends with cars 19, which are connected by suitable pivot-pins 20, bywhich they are mounted to have relative swinging movement to operate thelips 1+L. \Vhcn the levers are pressed by the action of the fingers onthe finger-pieces 18 to the dotted-line position shown in Fig. 2, thelips 14 are forced apart and the sides of the neck or sleeve 2 expandedto accommodate this movement. This action of the fingers releases thenipple, as will be readily understood, and compression of the nipple iseffected by releasing the levers, so that the lips will be retracted bythe resilient action of the sides of the neck or sleeve in returning totheir normal positions. By thus alternately compressing and releasingthe levers the lips will be alternately expanded and contracted orclosed together, so that the nipple will be compressed and released in amanner readily understood to simulate the natural action of the infantin extracting the fluid. I

In the operation of the device the cup or applicator l is applied to thegland and the lips expanded to engage the nipple, and simultaneonslywith the operation of the levers to force the lips apart the pump-piston9 is operated to extract the fluid. This operation is continued untilthe cylinder 6 isfilled, whereupon the stop-disk 13 is adjusted on thepiston-stem to hold the piston against inward movement. The pump maythen be detached to discharge the extracted fluid, as will be readilyunderstood.

In practice the pump-cylinder and piston may be made of vulcanite'fiberor of glass or of any other suitable material to serve the purpose.

From the foregoing description, taken in connection with theaccompanying drawings, the construction and mode of operation of thedevice will be readily understood, and it will be seen that it providesan extracting apparatus which is simple of construction, eflicient inuse, and capable of being readily cleansed and which further simulatesthe natural extracting action to a marked extent.

Having thus described the invention, what is claimed as new is 1. In adevice of the character described, the combination of an applicator,nipple-manipulating fingers, means for operating said fingers, and anextractor in communication with the applicator.

2. In a device of the character described, an applicator having anoutwardly-extending neck or sleeve adapted to expand and contract, anextractor having a throat communieating therewith, nipple-manipulatingfingers extending through the neck or sleeve into the applicator andadapted to be moved in one direction by the contraction of said neck,and means for operating said fingers in the reverse direction andexpanding the neck for subsequent reverse operation of the lips orfingers.

3. In a device of the character described, an applicator having aresilient neck or sleeve, an extracting device having a throat enteringsaid sleeve, nipple-manipulating fingers extending between said throatand sleeve and adapted to be normally held in compressed position by thecontraction of the sleeve, and pivoted levers for expanding said fingersand neck.

4. In an apparatus of the character described, an applicator, anextracting device communicating therewith, fingers associated with theapplicator, means for manually operating said fingers in one direction,and means for automatically operating the fingers in the oppositedirection.

In testimony whereof I affix my signature in presence of two witnesses.

UBER-TO DESAIX EZELL.

Witnesses:

FRED JAMES, G. J SMITH.

